Removable full opening cover for metallic barrels or containers



Oct. 2, 1934. B. WACKMAN 1,975,738

REMOVABLE FULL OPENING COVER FOR METALLIC BARRELS OR CONTAINERS Filed Aug. 1 1951 Patented Oct. 2, 1934 UNITED STATES PATENT OFFICE REMOVABLE FULL OPENING COVER FOR METALLIC BARRELS OR CONTAINERS 3 Claims.

This invention relates to improvements in a reinforced chime and cover therefor for metallic containers and has for one of its objects, the purpose of providing the cover with improved removable securing means.

Another object of the invention is in providing the opening end of the container with an improved cover seating means.

A further object of the invention is in providing the opening end of the cover with an improved reinforcement chime.

Other and further objects will appear in the specification and be specifically pointed out in the appended claims, reference being had in the accompanying drawing, exemplifying the invention, and in which:

Figure 1 is a fragmentary transverse vertical section taken through the opening end of a metallic container showing this improved cover mounted in secured position thereto and showing the improved chime construction of the container.

Figure 2 is a plan view of Fig. 1 taken approximately on the line II--II of said figure and a part thereof being shown in section.

Figure 3 is an enlarged fragmentary vertical section through the chime with the cover and locking ring removed.

Referring by numerals to the accompanying drawing 1 designates the side wall of a metallic container and formed on the wall adjacent the upper end of the container is an annular outwardly projecting rib 2. Formed on the wall above the rib 2 is an inwardly extending annular rib 3 and in the formation of said rib a groove 4 is provided, the upper surface of said rib 3 providing an annular gasket seat 5.

A reinforcing ring or collar 6 is mounted on the wall 1 above the rib 2 in which the lower edge '7 of the collar will rest on the rib 2, said collar after being mounted in position being rolled in a manner wherein an annular inwardly projecting rib 8 is formed and forced into the groove 4 of the rib 3 of the wall 1.

The collar 6 at its upper end is provided with an inwardly extending annular flange 9, said flange overengaging the upper edge 10 of the wall 1 which is above the gasket seat 5, the collar 6 after being rolled against the wall 1 being further secured thereto by spot welding or the like.

The diameter of the inner periphery of the rib 3 after being formed in the container provides the opening 11 of the container and for closing cooperation with said opening is the depressed or countersunk engaging portion 12 of a cover 13, said cover having an annular projecting gasket engaging flange 14.

In the use of a container of this character in which it is required to have a full opening for filling or emptying of the content, after the container has been filled and it is required to close the same, the cover 13 is engaged and positioned so that the depressed portion 12 of the cover will be engaged in the conflnes of the annular rib 3,

and the flange 14 of the cover will rest upon the gasket 15 which has previously been placed on the seat 5. A locking or holding split ring 16 of an angular shape in cross section is then mounted on the cover 13 and is pressed downwardly on the cover and forced outwardly so the side portion 18 of the ring will engage on the depressed or countersunk portion 12 of the cover 13 and as the top portion 17 of the ring is engaged between the flange 9 of the collar 6, the downward forcing pressure on the ring caused by the flange 9 will firmly seat the flange 14 of the cover 13 on the gasket 15 thereby securely sealing the cover and consequently the opening 11 of the barrel.

Each end of the ring 16 provided by the split 20 has an opening 21 formed therein, said openings being for cooperation with the projecting 0 parts of a spanner wrench and when it is desired to remove the cover from the container after shipment, the projecting parts of the spanner wrench or tool is engaged in respective openings 21 of the ring 16 and by manipulation of the wrench or tool, one end of the ring 16 will be swung from alinement with the other end of the ring so that the ring can'be pulled from its seating position between the flange 9 of the container and the cover 13. After removal of the locking ring 16, the cover can be readily pried from its seating position so that the content of the container can be removed.

In shipping containers of this character having a relatively heavy content, the usage thereof attendant with handling frequently causes the chimes thereof to become bent and distorted, therefore to eliminate the distorting or bending of the upper chime the reinforcing collar 6 is provided, such reinforcement being a requirement for the reason that it is necessary to prevent distortion of the chime which would hamper the unsealing or opening of the container.

Obviously constructional modifications are 5 possible without departing from the spirit of the present invention and therefore it is to be understood that it is not necessary to limit the invention by the terms used in the foregoing description, excepting such as the state of the art may require.

What I claim is:

1. A metallic container having a side wall and an open end, an inwardly extending annular seat formed on the side wall adjacent the open end thereof, an annular flange extending inwardly over the open end of the container of lesser width than said seat, a gasket on said seat, a countersunk cover for the opening of said container having a marginal flange which is adapted to be engaged against the gasket of said seat, and a removable split locking ring interposed between said flange and said cover for holding said cover in position on said gasket, said locking ring having a depending part for pressing against the countersunk portion of said cover.

2. A metallic container having a side wall and an open end. a reeniorcing collar mounted on the outside 01' the side wall having an annular flange extending over the edge of the. container at the open end, an inwardly disposed annular rib formed on the side wall adjacent the open end of the container forming a seat, said collar having a part pressed into the groove formed by said rib, a cover for the open end of the container cooperable with said seat, and a removable split locking ring interposed between the flange of said collar and said cover.

3. A metallic container having a side wall and an open end, a reentorcing collar mounted on the outside of the side wall having an annular flange extending over the edge of the container at the open end, and an inwardly disposed annular rib formed on the side wall of said container adjacent the open end thereof forming a cover seat, said collar having a part pressed into the groove formed by said rib, a cover for said seat having a countersunk part, and an angular shaped locking ring having a part for underengaging the flange of said collar and a part for engaging against said countersunk portion of said cover.

LOUIS B. WACKMAN. 

